Carte pédologique du Tchad à 1/1.000.000
By: [par] J. Pias.
Series: Notice explicative,; no. 41
Publisher: Office de la recherche scientifique et technique outre-mer
Published: 1970
Place of publication: [Paris
Language: eng
Subjects: Soils -- Chad -- Maps.
Genres: Maps.
Notes: Bibliography : v. 1, p. 153-167.
Vol. 2 issued in portfolio.